body {
    background-color: #f8f8f8;
}

.content {
    background-color: white;
    margin-top: 15px;
    padding: 0 15px;
}

.content .book_info {
    height: 55px;
    line-height: 55px;
    text-align: right;
    border-bottom: 1px solid rgba(241, 241, 241, 0.6);
}

.content .book_info .name {
    float: left;
    text-align: left;
}

.content .book_info .integral {
    font-size: 14px;
    color: #3d3d3d;
}

.content .sum_info {
    height: 55px;
    line-height: 55px;
    text-align: right;
    font-weight: 600;
    font-size: 16px;
    color: #3b3b3b;
}

.content .sum_info span {
    color: #b59768;
}
.content .need_info{
    height: 55px;
    line-height: 55px;
    text-align: right;
    font-size: 16px;
    border-top: 1px solid rgba(241, 241, 241, 0.6);
}
.content .need_info .need_hint{
    color: #c3c3c3;
}
.content .need_info .need_text{
    font-weight: 600;
    color: #3b3b3b;
}
.content .need_info .need_money{
    font-weight: 600;
    color: #b59768;
}

.bottom_btn {
    width: 100%;
    position: fixed;
    bottom: 150px;
    text-align: center;
}

.bottom_btn span {
    background-color: #3b3b3b;
    box-shadow: 0 0 10px #3b3b3b;
    border-radius: 30px;
    padding: 15px 45px;
    color: white;
}

.no_btn span {
    background-color: #c3c3c3;
    box-shadow: 0 0 10px #c3c3c3;
    border-radius: 30px;
    padding: 15px 45px;
    color: white;
}